package com.some;

import java.util.Scanner;

public class YinHang01 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String res = sc.next();
        String tmp = res.toUpperCase();
        String replace = tmp.replace("A", "a")
                .replace("E", "e")
                .replace("I", "i")
                .replace("O", "o")
                .replace("U", "u");
        System.out.println(replace);
    }
}
